Multiple Effect Evaporation

The multiple effect evaporation processes can optimise the energy efficiency of facilities through the recycling of vapour.

Multiple Effect Evaporation
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Functioning

The vapour supplied during the first effect produces the vapour at a lower pressure. These vapours are then used in a second effect as a vapour heating steam.

The number of effects vary and can go right up to 8. The number of effects is chosen according to the investment and operating cost.

The vapours at the outlet of the last effect should be condensed.

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Suitable for any type of evaporator

The multiple effect evaporator can be made up of falling film, forced or flash-cooling circulation evaporators.

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Multi-effect evaporator applications

This technology is great when the cost of vapour is low.

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References

Treatment of methanization digestates

Treatment of methanization digestates

  • Cogeneration double effect evaporator (hot water 90°C)
  • Falling film and forced circulation evaporators
  • Skid installation
  • Production of fertilizers
Concentration of a pharmaceutical by-product

Concentration of a pharmaceutical by-product

  • Double-effect evaporator
  • Energy recovery on alcohol vapors
  • Skid installation
  • Materials adapted to significant chloride rate
Concentration of agro industrial effluents

Concentration of agro industrial effluents

  • Quadruple effect evaporator
  • Falling film or forced circulation evaporators
Concentration of agro industrial effluents

Concentration of agro industrial effluents

  • Quadruple effect evaporator
  • Falling film or forced circulation evaporators
Evaporation unit concentrating fish by-products from the fishing and aquaculture industry

Evaporation unit concentrating fish by-products from the fishing and aquaculture industry

Multiple effect evaporation unit concentrating fish by-products from the fishing and aquaculture industry (combined with energy recovery from dryer vapor).